Volume 8, Issue 2 (6-2010)                   IJCE 2010, 8(2): 99-106 | Back to browse issues page


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Soltani-Jigheh H, Soroush A. Cyclic Behavior of Mixed Clayey Soils. IJCE. 2010; 8 (2) :99-106
URL: http://ijce.iust.ac.ir/article-1-452-en.html

Abstract:   (8807 Views)

Mixed clayey soils occur as mixtures of sand (or gravel) and clay in widely varying proportions. Their

engineering behavior has not been comprehensively studied yet. An experimental program, comprising monotonic,

cyclic, and post-cyclic triaxial tests was undertaken on compacted clay-granular material mixtures, having different

proportions of clay and sand or gravel. This paper presents the results of cyclic triaxial tests and explains the behavior

of the mixtures based on number of loading cycles, cyclic strain amplitude, granular material content, grain size, and

effective confining pressure. The results indicate an increase in degree of degradation and cyclic loading-induced pore

water pressure as the number of loading cycles, cyclic strain and granular material content increase. Also the results

show that the grain size has no significant effect on the degree of degradation and cyclic loading-induced pore water

pressure in the specimens. The effect of granular material content on pore water pressure during cyclic loading in

equal-stress-level was also examined. The pore water pressure increases with the increase of granular material

content.

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Type of Study: Research Paper | Subject: Seismic Geotechnique

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